import book.BookList;
import user.AdmiUser;
import user.NormalUser;

import user.User;
import java.util.Scanner;

public class Main {
    //定义一个函数，返回值类型进行了向上转型
    private static User login(){
        System.out.println("请输入你的姓名：");
        Scanner scanner = new Scanner(System.in);
        String name = scanner.nextLine();

        System.out.println("请输入你的身份：1.管理员；2.普通用户");
        int choice = scanner.nextInt();
        if(choice == 1){
            return new AdmiUser(name);
        } else if (choice == 2) {
            return new NormalUser(name);
        }else {
            System.out.println("输入错误");
            return null;
        }
    }
    public static void main(String[] args) {
        BookList bookList = new BookList();

        User user = login();
        while (true){
            int choice = user.menu();
            user.doOpertion(choice,bookList);
        }
    }
}
